Apple Hardware Test AHT A

All Apple Hardware Tests for Macintosh professional portables are numbered sequentially starting with the prefix "3A." This approach provides each AHT release a unique version number and eliminates confusion between the same version across different product lines.

To use Apple Hardware Test on the MacBook Air:

  1. Disconnect all external devices from the computer except the power adapter.
  2. Restart the computer while holding down the D key.
  3. When the Apple Hardware Test chooser screen appears, select the language for your location.
  4. Press the Return key or click the right arrow button.
  5. When the Apple Hardware Test main screen appears (after about 45 seconds), follow the onscreen instructions.
  6. If Apple Hardware Test detects an issue, it displays an error code. Make a note of the error code before pursuing support options. If Apple Hardware Test doesn't detect a hardware issue, the issue may be software related.

If the previous method doesn't work on the MacBook Air, you can use a networked computer and Remote Install Mac OS X to run Apple Hardware Test. Be sure to install Remote Install Mac OS X on the networked computer first. See the section called Reinstalling software using Remote Install Mac OS X later in this chapter.

Was this article helpful?

0 0
Apple Technologies Explained

Apple Technologies Explained

What is So Great About Apples Design Concepts? There is always a reason why consumers are drawn to a particular brand of product. Apple has the record for drawing people in, and not just Americans, why? Ease of use, thats why.

Get My Free Ebook


Post a comment